White River Flowage Lake

On the LakeGrade rubric, White River Flowage Lake pulls an A: clarity at 28.3 ft and 18 µg/L of phosphorus put it in the top bracket for Wisconsin. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.

A TSI value of 37 puts White River Flowage Lake in the oligotrophic range, where biological productivity stays low and the water column remains clear. A maximum depth of 20 ft puts White River Flowage Lake in the middle of Wisconsin's depth distribution. At 125 acres, White River Flowage Lake fits the Wisconsin median for monitored lakes, with partial shoreline records. Among the 30 graded lakes in Waushara County, White River Flowage Lake sits at rank 8, above the county median.

Eurasian watermilfoil has been documented at White River Flowage Lake, requiring shoreline management to keep dense mats from crowding native vegetation. The fishery is bass-led, with 3 documented species across the lake's records. A documented public access point at White River Flowage Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.